68015115 has 24 divisors (see below), whose sum is σ = 134735328. Its totient is φ = 31092480.

The previous prime is 68015107. The next prime is 68015159. The reversal of 68015115 is 51151086.

It is not a de Polignac number, because 68015115 - 2³ = 68015107 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107646 + ... + 108275.

It is an arithmetic number, because the mean of its divisors is an integer number (5613972).

Almost surely, 2^68015115 is an apocalyptic number.

68015115 is a deficient number, since it is larger than the sum of its proper divisors (66720213).

68015115 is a wasteful number, since it uses less digits than its factorization.

68015115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215939 (or 215936 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The square root of 68015115 is about 8247.1276818053. The cubic root of 68015115 is about 408.1957502144.

The spelling of 68015115 in words is "sixty-eight million, fifteen thousand, one hundred fifteen".